另般厂家制作管材时会取上精确数字例26G厂家会做成0.4毫米20G会做成0.8mm。 注射器 针头的国际G号码具体分析解释： 1，outer 是针头外径，inner 是针头内径，都是毫米。

20 Gauge 1 inch Needle (100 Pack) Luer Lock Industrial Dispensing Accessories, Individual Package

Whether it’s a routine draw for blood testing or the insertion of an IV line for a fluid supply, a 20 gauge needle is often an appropriate choice for the job. Although it is slightly larger in outer diameter than the most commonly used needle gauges, the 20g is ideal for effective injection or withdrawal of fluids. When Do You Use a 20g Needle?

BD PrecisionGlide™ needle technology incorporates a thin wall, tri-bevel tip and BD micro bonded lubricant which is designed to provide ease of penetration. BD recently streamlined 16G-25G needles to a thin-wall configuration.* *27G, 30G and 18G blunt filter needles will …

A 20g needle is a popular choice for various applications due to its balance between gauge size and usability. This section discusses key factors to consider when choosing a 20g needle for your medical needs.

2023年2月1日 · 目前，针规系统（needle gauge system），通常被称为Gauge（量规）或G，是一种国际上使用的用于确定针尺寸的标尺。 它采用的是工业中用于测量金属线大小的量规（因历史原因，一直沿用至今）。 注：量规最初是作为一种测量金属线，特别是铁丝厚度的方法而出现的。 几个世纪以来，金属丝的制造过程被称为“拉丝”。 制线的过程是从粗线开始的，然后通过逐渐缩小的孔拉 (或拉)线来制作细线。 最初，最大的金属丝被命名为1 G，然后，对于每一个连续较小 …

20 gauge IV needles are among the most commonly-used sizes of IV needles. And like other kinds of IV needles, they are used for infusion therapy and administering fluids and medications directly into the patient’s bloodstream with the aid of a cannula and IV line.

100Pcs 20G 1 Inch (25MM) Needle Luer Lock Industrial Accessories for Scientific Measuring, Refilling Liquid, Inks & Plant, Individual Package

BD ® Quincke Spinal Needles have a unique key/slot arrangement of stylet and cannula hubs that facilitates proper needle bevel orientation.